Pruning machine

Abstract

The utility model relates to a kind of pruning machines, including shell, motor, fan and the cutting assembly of mobile installation in shell, shell further includes the opening in fluid communication with air inlet, cutting assembly extends to shell outside across opening, pruning machine further include the first stopper of being set in cutting assembly below, first stopper extends by shell to the direction close to cutting assembly, in the front-back direction of pruning machine, first stopper is located between air inlet and opening, compared with opening, first stopper is adjacent to air inlet setting.The pruning machine of the utility model, on the one hand, first stopper will stop the pollution such as grass clippings and dust flowing into shell from the above opening to avoid its flow to heat dissipation air duct and affect the normal work of motor;On the other hand, first stopper is set adjacent to air inlet to reduce the influence of the above pollution such as grass clippings and dust by negative pressure at air inlet, to further avoid its flow to heat dissipation air duct.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, and in particular to a pruning machine. Background Technology

[0002] A pruning machine is a commonly used gardening tool, which includes a motor, a cutting component, and a transmission component connecting the motor and the cutting component. The motor drives the cutting component to reciprocate through the transmission component, thereby cutting various shrubs, hedges, etc.

[0003] The existing pruning machine has an opening in its casing. The cutting component passes through this opening and extends outside the casing. When the pruning machine is pruning, the grass clippings, dust, and other contaminants that are adhering to the reciprocating cutting component will enter the casing through this opening. This opening is fluidly connected to the air inlet of the pruning machine. Due to the negative pressure, the grass clippings, dust, and other contaminants that enter the casing through this opening will move towards the air inlet and enter the heat dissipation duct, thereby affecting the normal operation of the transmission components and the motor.

[0004] Therefore, it is indeed necessary to provide an improved pruning machine to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pruning machine with good dust prevention effect.

[0006] The present invention solves the existing technical problems by adopting the following technical solution: a pruning machine, comprising: a housing, including an air inlet and an air outlet; a motor, disposed within the housing; a fan, driven by the motor to generate a cooling airflow that enters the housing through the air inlet and exits the housing through the air outlet; a cutting assembly, movably mounted on the housing, the housing further comprising an opening fluidly communicating with the air inlet, a portion of the cutting assembly extending through the opening to the outside of the housing; the pruning machine further comprising a first stop member disposed below the cutting assembly, the first stop member extending from the housing toward the cutting assembly, the first stop member being located between the air inlet and the opening in the front-rear direction of the pruning machine, and being disposed adjacent to the air inlet relative to the opening.

[0007] Furthermore, the pruning machine also includes a transmission component connected between the motor and the cutting component. The cooling airflow flows through the transmission component, and the orthographic projection of the first stop member on the horizontal plane falls within the range of the orthographic projection of the transmission component on the horizontal plane.

[0008] Furthermore, the transmission assembly also includes a reduction mechanism connected to the motor and an eccentric mechanism connected between the reduction mechanism and the cutting assembly. In the front-rear direction of the pruning machine, the first stop is located between the eccentric mechanism and the opening.

[0009] Furthermore, in the front-rear direction of the pruning machine, the distance between the first stop and the eccentric mechanism is no greater than 10mm.

[0010] Furthermore, the first stop includes a connecting end connected to or integrally formed on the inner surface of the housing and an extension end extending upward from the connecting end. The transmission assembly also includes a pad that carries the eccentric mechanism. In the height direction of the pruning machine, the distance between the extension end and the pad is no greater than 4 mm.

[0011] Furthermore, in the height direction of the pruning machine, the distance between the extended end and the pad is not less than 2mm.

[0012] Furthermore, the pruning machine also includes a second stop disposed below the cutting assembly. The second stop extends from the housing toward the cutting assembly, and in the front-rear direction of the pruning machine, the second stop is located between the first stop and the opening.

[0013] Furthermore, compared to the first stop, the second stop is disposed adjacent to the opening.

[0014] Furthermore, the housing also includes a chip discharge port disposed between the second stop and the first stop, the chip discharge port opening downwards and being disposed adjacent to the first stop relative to the second stop.

[0015] Furthermore, the housing also includes a chip discharge port disposed between the first stop and the opening, the chip discharge port opening downward and being disposed adjacent to the first stop relative to the opening.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The pruning machine includes a housing, a motor disposed within the housing, a fan driven by the motor to generate a cooling airflow that enters the housing through an air inlet and exits the housing through an air outlet, and a cutting assembly movably mounted on the housing. The housing also includes an opening in fluid communication with the air inlet, through which a portion of the cutting assembly extends to the outside of the housing. The pruning machine also includes a first stop member disposed below the cutting assembly. The first stop member extends from the housing toward the cutting assembly. In the front-rear direction of the pruning machine, the first stop member is located between the air inlet and the opening, and is positioned adjacent to the air inlet compared to the opening. Thus, on the one hand, the first stop member blocks the flow of grass clippings, dust, and other contaminants into the housing from the opening, preventing them from flowing into the cooling air duct and affecting the normal operation of the motor; on the other hand, the first stop member is positioned adjacent to the air inlet to reduce the impact of the negative pressure at the air inlet on the grass clippings, dust, and other contaminants, thereby further preventing them from flowing into the cooling air duct. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the pruning machine in a preferred embodiment of this utility model; Figure 2 yes Figure 1 The diagram shows the internal structure of the pruning machine after part of its outer shell has been removed. Figure 3 yes Figure 2 A magnified view of part A of the pruning machine shown.

[0018] Meaning of the reference numerals in the diagram: Detailed Implementation

[0019] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] Please see Figures 1 to 3 The image shows a pruning machine 100 according to one embodiment of the present invention. For ease of understanding of the technical solution, in this embodiment, [the machine is described as...]. Figure 1 The direction shown is the front-to-back direction of the pruning machine 100. Correspondingly, the direction perpendicular to the front-to-back direction and parallel to the vertical direction is the height direction of the pruning machine 100.

[0021] The pruning machine 100 includes a housing 1, a cutting assembly 2, a transmission assembly 3, a motor 4, and a battery pack 5.

[0022] The housing 1 includes a main housing portion 11, a power housing portion 12, a grip portion 13, and a connecting portion 14. Specifically, the cutting component 2 is supported by the main housing portion 11, which has an opening 111. One end of the cutting component 2 is connected to the interior of the main housing portion 11, and the other end extends forward through the opening 111 to the exterior of the housing 1 for pruning operations. The power housing portion 12 is connected to or integrally formed with the rear of the main housing portion 11. The motor 4 is supported by the power housing portion 12, and the motor 4 and the transmission component 3 are at least partially housed inside the power housing portion 12. The transmission component 3 is connected between the motor 4 and the cutting component 2, and the rotational motion of the motor 4 is transmitted to the cutting component 2 through the transmission component 3 to drive the cutting component 2 to move. The grip portion 13 is connected to or integrally formed with the rear of the power housing portion 12, and the connecting portion 14 is connected to or integrally formed with the rear of the grip portion 13. The battery pack 5 is used to power the pruning machine 100 and is detachably installed in the connecting portion 14.

[0023] The pruning machine 100 also includes a fan 8 driven by a motor 4 to generate a cooling airflow that enters the housing 1 through the air inlet 112 and exits the housing 1 through the air outlet 113. Specifically, the housing 1 also includes an air inlet 112 and an air outlet 113. In this embodiment, the air inlet 112 and the air outlet 113 are disposed in the power housing 12, with the air inlet 112 located below the motor 4 and the air outlet 113 located above the motor 4. When the pruning machine 100 is in operation, the motor 4 drives the fan 8 to rotate, thereby creating a negative pressure inside the power housing 12. The cooling airflow enters the interior of the power housing 12 from the external environment through the air inlet 112, flows successively through the transmission assembly 3 and the motor 4 to dissipate heat from the transmission assembly 3 and the motor 4, and exits the power housing 12 through the air outlet 113.

[0024] The pruning machine 100 also includes a first stop 6 disposed below the cutting assembly 2. The first stop 6 extends from the housing 1 toward the cutting assembly 2. In the front-rear direction of the pruning machine 100, the first stop 6 is located between the air inlet 112 and the opening 111, and is disposed adjacent to the air inlet 112 compared to the opening 111. Specifically, the cutting assembly 2 is movably connected to the opening 111. When the pruning machine 100 is in operation, pollutants such as grass clippings and dust adhering to the cutting assembly 2 will flow into the interior of the main housing 11 through the opening 111. The opening 111 is in fluid communication with the air inlet 112. Thus, the grass clippings and dust entering the interior of the main housing 11 through the opening 111 will move toward the air inlet 112 due to the negative pressure at the air inlet 112.

[0025] In this embodiment, on the one hand, a first stop 6 is provided between the air inlet 112 and the opening 11, and the first stop 6 is located below the cutting assembly 2 and extends from the housing 1 toward the cutting assembly 2. In this way, the first stop 6 will stop the grass clippings, dust and other pollutants flowing into the main housing 11 from the opening 111 to prevent them from flowing into the power housing 12 and affecting the normal operation of the motor 4. On the other hand, the first stop 6 is set near the air inlet 112 to reduce the negative pressure at the air inlet 112 on the grass clippings, dust and other pollutants, thereby further preventing them from flowing into the heat dissipation duct and affecting the normal operation of the motor 4.

[0026] Furthermore, the cooling airflow passes through the transmission component 3, and the orthographic projection of the first stop 6 on the horizontal plane falls within the orthographic projection range of the transmission component 3 on the horizontal plane. In this way, the first stop 6 blocks grass clippings, dust, and other contaminants flowing into the main housing 11 from the opening 111, preventing them from flowing into the transmission component 3 and affecting its normal operation, thus further improving the dustproof effect of the pruning machine 100.

[0027] The transmission assembly 3 also includes a reduction mechanism 31 connected to the motor 4 and an eccentric mechanism 32 connected between the reduction mechanism 31 and the cutting assembly 2. In the front-rear direction of the pruning machine 100, the first stop 6 is located between the eccentric mechanism 32 and the opening 111, and the distance between the first stop 6 and the eccentric mechanism 32 is no more than 10mm. In this way, the first stop 6 will stop the flow of grass clippings, dust and other contaminants into the main housing 11 from the opening 111 to prevent them from flowing to the connection between the eccentric mechanism 32 and the cutting assembly 2, thereby preventing the eccentric mechanism 32 from jamming due to the contaminants, reducing the possibility of the motor 4 stalling, and extending the service life of the pruning machine 100.

[0028] The first stop 6 includes a connecting end 61 connected to or integrally formed on the inner surface of the housing 1 and an extension end 62 extending upward from the connecting end 61. The transmission assembly 3 also includes a pad 33 supporting the eccentric mechanism 32. The pad 33 is located below the eccentric mechanism 32. In the height direction of the pruning machine 100, the distance between the extension end 62 and the pad 33 ranges from 2mm to 4mm. In this way, while ensuring that the first stop 6 and the transmission assembly 3 do not interfere with each other in the height direction of the pruning machine 100, the distance between the end of the first stop 6 and the transmission assembly 3 is reduced. This improves the stopping effect of the first stop 6 on pollutants such as grass clippings and dust flowing into the main housing 11 from the opening 111, further preventing the pollutants from flowing to the location of the transmission assembly 3. On the other hand, it reduces the negative pressure at the air inlet 112 on the pollutants such as grass clippings and dust, thereby further improving the dustproof effect of the pruning machine 100.

[0029] The housing 1 also includes a chip discharge port 114 disposed between the first stop member 6 and the opening 111. The chip discharge port 114 opens downward and is disposed adjacent to the first stop member 6 compared to the opening 111. Specifically, a chip discharge port 114 communicating with the external environment is provided on the inner wall of the housing 1. The chip discharge port 114 is located between the first stop 6 and the opening 111, and is disposed adjacent to the first stop 6. In this way, on the one hand, when the pruning machine 100 is in working condition, the grass clippings, dust and other pollutants flowing into the main housing 11 from the opening 111 will preferentially flow to the outside of the housing 1 through the chip discharge port 114 as they move toward the first stop 6, thereby further preventing the pollutants from flowing into the heat dissipation duct and affecting the normal operation of the transmission component 3 and the motor 4; on the other hand, when the pruning machine 100 has been in operation for a long time, the user can thoroughly clean the pollutants accumulated between the first stop 6 and the opening 111 through the chip discharge port 114, reducing the frequency of user disassembly and cleaning, and improving the user experience.

[0030] In another optional embodiment of this utility model, the pruning machine 100 further includes a second stop 7 disposed below the cutting assembly 2. The second stop 7 extends from the housing 1 toward the cutting assembly 2. In the front-rear direction of the pruning machine 100, the second stop 7 is located between the first stop 6 and the opening 111, and is disposed adjacent to the opening 111 compared to the first stop 6. In this embodiment, through the cooperation of the first stop 6 and the second stop 7, on the one hand, it further prevents the flow of pollutants such as grass clippings and dust into the main housing 11 from the opening 111, thus preventing them from flowing into the power housing 12 and affecting the normal operation of the motor 4 and the transmission assembly 3; on the other hand, it further reduces the impact of the negative pressure at the air inlet 112 on the pollutants such as grass clippings and dust, thereby further preventing them from flowing into the heat dissipation duct and affecting the normal operation of the motor 4 and the transmission assembly 3.

[0031] In this embodiment, the housing 1 further includes a chip discharge port 114 disposed between the first stop member 6 and the second stop member 7. The chip discharge port 114 opens downward and is disposed adjacent to the first stop member 6 compared to the second stop member 7. Specifically, a chip discharge port 114 communicating with the external environment is provided on the inner wall of the housing 1. The chip discharge port 114 is located between the first stop 6 and the second stop 7, and is set adjacent to the first stop 6. In this way, on the one hand, when the pruning machine 100 is in working state, the grass clippings, dust and other pollutants flowing into the main housing 11 through the above-mentioned opening 111 will preferentially flow to the outside of the housing 1 through the chip discharge port 114 as they move toward the first stop 6, thereby further preventing the pollutants from flowing into the heat dissipation duct and affecting the normal operation of the transmission component 3 and the motor 4; on the other hand, when the pruning machine 100 has been operating for a long time, the user can use the chip discharge port 114 to thoroughly clean the pollutants accumulated between the first stop 6 and the second stop 7, reducing the frequency of user disassembly and cleaning, and improving the user experience.

[0032] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pruning machine, comprising: The housing includes an air inlet and an air outlet; The motor is housed within the housing; A fan, driven by the motor, generates a cooling airflow that enters the housing through the air inlet and exits the housing through the air outlet; A cutting assembly is movably mounted on the housing, the housing also including an opening in fluid communication with the air inlet, a portion of the cutting assembly extending through the opening to the outside of the housing; The pruning machine is characterized in that: the pruning machine further includes a first stop member disposed below the cutting assembly, the first stop member extending from the housing toward the cutting assembly, the first stop member being located between the air inlet and the opening in the front-rear direction of the pruning machine, and the first stop member being disposed adjacent to the air inlet relative to the opening.

2. The pruning machine according to claim 1, characterized in that: The pruning machine also includes a transmission component connected between the motor and the cutting component. The cooling airflow flows through the transmission component, and the orthographic projection of the first stop member on the horizontal plane falls within the range of the orthographic projection of the transmission component on the horizontal plane.

3. The pruning machine according to claim 2, characterized in that: The transmission assembly further includes a reduction mechanism connected to the motor and an eccentric mechanism connected between the reduction mechanism and the cutting assembly. In the front-rear direction of the pruning machine, the first stop is located between the eccentric mechanism and the opening.

4. The pruning machine according to claim 3, characterized in that: In the front-to-back direction of the pruning machine, the distance between the first stop and the eccentric mechanism is no more than 10mm.

5. The pruning machine according to claim 3, characterized in that: The first stop includes a connecting end connected to or integrally formed on the inner surface of the housing and an extension end extending upward from the connecting end. The transmission assembly also includes a shim that carries the eccentric mechanism. In the height direction of the pruning machine, the distance between the extension end and the shim is no greater than 4 mm.

6. The pruning machine according to claim 5, characterized in that: In the height direction of the pruning machine, the distance between the extended end and the pad is not less than 2mm.

7. The pruning machine according to claim 1, characterized in that: The pruning machine also includes a second stop disposed below the cutting assembly. The second stop extends from the housing toward the cutting assembly. In the front-rear direction of the pruning machine, the second stop is located between the first stop and the opening.

8. The pruning machine according to claim 7, characterized in that: Compared to the first stop, the second stop is disposed adjacent to the opening.

9. The pruning machine according to claim 7, characterized in that: The housing also includes a chip discharge port disposed between the second stop and the first stop, the chip discharge port opening downwards and being disposed adjacent to the first stop relative to the second stop.

10. The pruning machine according to claim 1, characterized in that: The housing also includes a chip discharge port disposed between the first stop and the opening, the chip discharge port opening downward and being disposed adjacent to the first stop relative to the opening.

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